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ifconfig
命令[root@localhost ~]# ifconfig //查看網絡接口信息
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 6139 bytes 3599390 (3.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2483 bytes 330519 (322.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 84 bytes 7500 (7.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 84 bytes 7500 (7.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:d9:de:d2 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ifconfig 網絡接口
[root@localhost ~]# ifconfig ens33 //查看ens33網絡接口信息
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 6183 bytes 3602858 (3.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2505 bytes 334073 (326.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
hostname
命令[root@localhost ~]# hostname //查看主機名稱
localhost.localdomain
hostnamectl set-hostname [主機名稱]
[root@localhost ~]# hostnamectl set-hostname http01 //更改主機名
[root@localhost ~]# su //切換用戶,刷新主機名
[root@http01 ~]# hostname //查看主機名稱
http01
route
命令[root@http01 ~]# route //查看路由表
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
查看系統的網絡連接狀態、路由表、接口統計等信息
netstat
命令netstat [選項]
-a
:全部
-n
:數字格式顯示
-p
:協議
-t
:tcp
-u
:udp
-r
:路由
[root@http01 ~]# netstat -antp //查看以數字格式顯示全部TCP協議端口的網絡連接情況
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN 1308/dnsmasq
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 983/sshd
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 985/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1292/master
tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 4840/sshd: root@pts
tcp 0 0 192.168.144.133:22 192.168.144.1:54734 ESTABLISHED 4840/sshd: root@pts
tcp6 0 0 :::111 :::* LISTEN 1/systemd
tcp6 0 0 :::80 :::* LISTEN 2373/httpd
tcp6 0 0 :::22 :::* LISTEN 983/sshd
tcp6 0 0 ::1:631 :::* LISTEN 985/cupsd
tcp6 0 0 ::1:25 :::* LISTEN 1292/master
tcp6 0 0 ::1:6010 :::* LISTEN 4840/sshd: root@pts
[root@http01 ~]# netstat -nuap //查看以數字格式顯示全部UDP協議端口的網絡連接情況
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
udp 0 0 0.0.0.0:36571 0.0.0.0:* 788/dhclient
udp 0 0 0.0.0.0:47956 0.0.0.0:* 578/avahi-daemon: r
udp 0 0 192.168.122.1:53 0.0.0.0:* 1308/dnsmasq
udp 0 0 0.0.0.0:67 0.0.0.0:* 1308/dnsmasq
udp 0 0 0.0.0.0:68 0.0.0.0:* 788/dhclient
udp 0 0 0.0.0.0:5353 0.0.0.0:* 578/avahi-daemon: r
udp 0 0 127.0.0.1:323 0.0.0.0:* 636/chronyd
udp6 0 0 :::57996 :::* 788/dhclient
udp6 0 0 ::1:323 :::* 636/chronyd
[root@http01 ~]# netstat -r //查看路由信息,與route命令作用相同
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
default gateway 0.0.0.0 UG 0 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 0 0 0 ens33
測試網絡通訊性
ping
命令ping [主機名]/[IP地址]
[root@http01 ~]# ping 192.168.100.10 //測試網絡通訊
PING 192.168.100.10 (192.168.100.10) 56(84) bytes of data.
64 bytes from 192.168.100.10: icmp_seq=1 ttl=128 time=0.860 ms
64 bytes from 192.168.100.10: icmp_seq=2 ttl=128 time=0.530 ms
64 bytes from 192.168.100.10: icmp_seq=3 ttl=128 time=0.514 ms
64 bytes from 192.168.100.10: icmp_seq=4 ttl=128 time=0.465 ms
測試從當前主機到目的主機之間經過的網絡節點
traceroute
命令traceroute 目標主機地址
[root@http01 ~]# traceroute 192.168.100.10
traceroute to 192.168.100.10 (192.168.100.10), 30 hops max, 60 byte packets
1 gateway (192.168.144.2) 0.320 ms 0.255 ms 0.223 ms
2 * * *
3 * * *
4 * * *
測試DNS域名解析
nslookup
命令nslookup [目標主機地址]/[目標DNS地址]
[root@http01 ~]# nslookup www.baidu.com
Server: 192.168.144.2
Address: 192.168.144.2#53
Non-authoritative answer:
www.baidu.com canonical name = www.a.shifen.com.
Name: www.a.shifen.com
Address: 183.232.231.172
Name: www.a.shifen.com
Address: 183.232.231.174
簡單、快速,可直接修改運行中的網絡參數
一般只適合在調試網絡的過程中使用
臨時設置網絡接口的IP地址、子網掩碼
ifconfig 接口名 IP地址 [netmask(子網掩碼)]
[root@http01 ~]# ifconfig ens33 //查看ens33接口IP地址
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 42 bytes 3966 (3.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 86 bytes 9346 (9.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@http01 ~]# ifconfig ens33 192.168.144.138/24 //設置臨時IP地址
[root@http01 ~]# ifconfig ens33 //查看是否成功設置
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.138 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 2660 bytes 3613441 (3.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 844 bytes 57384 (56.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@http01 ~]# systemctl restart network //重啟網絡服務
[root@http01 ~]# ifconfig ens33 //查看IP地址
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet) //設置的IP地址失效
RX packets 2708 bytes 3618185 (3.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 894 bytes 63590 (62.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
設置固定網絡接口的IP地址、子網掩碼
設置固定的網絡接口IP地址、子網掩碼,需要在網絡接口的配置文件中更改配置文件來完成。
網絡接口配置文件
/etc/sysconfig/network-scripts/
重啟network網絡服務
systemctl restart network
[root@http01 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33 //進入編輯網卡配置文件
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=staticl //將DHCP更改為staticl
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=2ef6b862-5201-48c5-a450-23b3720ab3a0
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.144.138 //輸入要設定的IP地址
NETMAS=255.255.255.0 //輸入子網掩碼
GATEWAY=192.168.144.1 //輸入網關地址
[root@http01 ~]# systemctl restart network //重啟網絡服務
[root@http01 ~]# ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.138 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::20c:29ff:fe5b:d3a0 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet) //地址設置成功
RX packets 3832 bytes 3715216 (3.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1558 bytes 160876 (157.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
禁用或者重新激活網卡
ifconfig 網絡接口 down
ifconfig 網絡接口 up
[root@localhost ~]# ifconfig ens33 down //禁用網卡
[root@localhost ~]# ifconfig ens33 //查看網卡信息,無IP地址連接
ens33: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 459 bytes 495831 (484.2 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 240 bytes 22865 (22.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@localhost ~]# ifconfig ens33 up //重新激活網卡
[root@localhost ~]# ifconfig ens33 //查看網卡信息,成功獲取IP地址
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 463 bytes 496409 (484.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 264 bytes 26630 (26.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
虛擬網絡接口
ifconfig 接口名:序號 IP地址
[root@localhost ~]# ifconfig ens33:0 192.168.144.140 //在ens33網卡上添加虛擬網卡,序列號為0
[root@localhost ~]# ifconfig //查看網卡信息
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 653 bytes 512686 (500.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 373 bytes 39897 (38.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 //創建的虛擬網卡
inet 192.168.144.140 netmask 255.255.255.0 broadcast 192.168.144.255
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
...//省略部分內容...
添加到指定網段的路由記錄
route add -net 網段地址 gw IP地址(網關)
刪除到指定網段的路由記錄
route del -net 網段地址
刪除路由表中默認網關記錄
route del default gw IP地址
route add default gw IP地址
[root@localhost ~]# route //查看路由表
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
[root@localhost ~]# route add -net 192.168.100.0/24 gw 192.168.144.1 //添加網段
[root@localhost ~]# route //查看路由表是否添加網段
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 100 0 0 ens33
192.168.100.0 192.168.144.1 255.255.255.0 UG 0 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
[root@localhost ~]# route del -net 192.168.100.0/24 //刪除添加的網段
[root@localhost ~]# route //查看路由表,看添加的網段是否刪除
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
[root@localhost ~]# route add default gw 192.168.144.1 //添加默認網關
[root@localhost ~]# route //查看是否成功添加默認網關
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 0 0 0 ens33
default gateway 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
[root@localhost ~]# route del default gw 192.168.144.1 //刪除添加的默認網關
[root@localhost ~]# route //查看路由表是否成功刪除
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.144.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
保存全局網絡設置,主要包括主機名信息
/etc/sysconfig/network
//etc/hostname
在CentOS 6
中若要修改主機名可以執行“vim /etc/sysconfig/network”
修改配置文件,而在CentOS 7
中我們可以執行“vim /etc/hostname”
就可以去修改主機名配置文件了。
[root@localhost ~]# vim /etc/hostname //進入編輯主機名配置文件
localhost.localdomain //當前主機名 如若修改可以直接在編輯器修改主機名
~
~
~
~
~
~
指定為本機體提供DNS解析的服務器地址(對改文件的修改將會立即生效)
/etc/resolv.conf
nameserver IP地址
[root@localhost ~]# vim /etc/resolv.conf
# Generated by NetworkManager
search localdomain
nameserver 192.168.144.2
~
~
~
~
在本地主機映射文件中添加映射記錄,當訪問添加的記錄網站時,將會直接向添加的映射記錄IP地址發送web請求,省略了向DNS服務器解析IP地址的過程。
保存主機名與IP
地址的映射記錄
/etc/hosts
hosts
文件和DNS
服務器的比較
hosts
文件查找解析記錄hosts
文件只對當前的主機有效hosts
文件可減少DNS
查詢過程,從而加快訪問速度在日常生產活動中難免會遇到需要建立雙網卡的情況,這里我們來看看如何建立雙網卡
1、首先在虛擬機Linux操作系統中添加一塊物理網卡,然后查看網絡接口信息,確定是否成功添加網絡
[root@localhost ~]# ifconfig //查看網接口信息
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.144.133 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 3415 bytes 740748 (723.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1725 bytes 201799 (197.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens36: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 //新添加的物理網卡
inet 192.168.144.141 netmask 255.255.255.0 broadcast 192.168.144.255
inet6 fe80::deb1:3cec:3e26:5ec2 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:aa txqueuelen 1000 (Ethernet)
RX packets 85 bytes 6069 (5.9 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 30 bytes 4667 (4.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
2、這個時候我們查看網卡配置文件目錄,看是否有添加的網卡配置文件
[root@localhost ~]# cd /etc/sysconfig/network-scripts/ //進入網卡配置文件目錄
[root@localhost network-scripts]# ls //查看,這個時候時沒有新添加的網卡ens36的配置文件的
ifcfg-ens33 ifdown-ipv6 ifdown-TeamPort ifup-ippp ifup-routes network-functions
ifcfg-lo ifdown-isdn ifdown-tunnel ifup-ipv6 ifup-sit network-functions-ipv6
ifdown ifdown-post ifup ifup-isdn ifup-Team
ifdown-bnep ifdown-ppp ifup-aliases ifup-plip ifup-TeamPort
ifdown-eth ifdown-routes ifup-bnep ifup-plusb ifup-tunnel
ifdown-ib ifdown-sit ifup-eth ifup-post ifup-wireless
ifdown-ippp ifdown-Team ifup-ib ifup-ppp init.ipv6-global
3、因為沒有ens36網卡的配置文件,我們就沒有辦法給ens36指定固定的地址的。下面我們就把ens36與ens33這兩個網卡全部設為僅主機相連模式,然后再查看網絡接口信息。
[root@localhost ~]# ifconfig //查看網絡接口信息
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 //無獲取IP地址
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 3578 bytes 754392 (736.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1812 bytes 215065 (210.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens36: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 //無發獲取IP地址
inet6 fe80::deb1:3cec:3e26:5ec2 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:aa txqueuelen 1000 (Ethernet)
RX packets 160 bytes 12321 (12.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 48 bytes 7865 (7.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
我在這里無法獲取IP地址是因為的VMware虛擬機中DHCP服務關掉了,所以無法獲取地址。
4、這個時候我們就給這兩個物理網卡配固定地址
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33 //編輯網卡信息
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static //dhcp更改為static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=2ef6b862-5201-48c5-a450-23b3720ab3a0
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.100.10 //輸入配置IP地址
NETMAS=255.255.255.0 //輸入配置子網掩碼
GATEWAY=192.168.100.0 //輸入配置網關
~
~
~
~
~
~
~
:wq
[root@localhost ~]# service network restart //重啟網絡服務
Restarting network (via systemctl): [ 確定 ]
[root@localhost ~]# ifconfig //查看網絡接口信息,看配置的地址是否生效
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.10 netmask 255.255.255.0 broadcast 192.168.100.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 3642 bytes 771191 (753.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1948 bytes 239617 (234.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
下面我們進入網卡配置文件目錄,這時候時沒有ens36網卡的配置文件的,我們就需要把ens33的配置文件直接復制,更改為ens36的配置文件,然后把配置文件的內容更改就可以了
[root@localhost ~]# cd /etc/sysconfig/network-scripts/ //進入網卡配置文件目錄
[root@localhost network-scripts]# ls //查看
ifcfg-ens33 ifdown-isdn ifup ifup-plip ifup-tunnel
ifcfg-lo ifdown-post ifup-aliases ifup-plusb ifup-wireless
ifdown ifdown-ppp ifup-bnep ifup-post init.ipv6-global
ifdown-bnep ifdown-routes ifup-eth ifup-ppp network-functions
ifdown-eth ifdown-sit ifup-ib ifup-routes network-functions-ipv6
ifdown-ib ifdown-Team ifup-ippp ifup-sit
ifdown-ippp ifdown-TeamPort ifup-ipv6 ifup-Team
ifdown-ipv6 ifdown-tunnel ifup-isdn ifup-TeamPort
[root@localhost network-scripts]# cp -p ifcfg-ens33 ifcfg-ens36 //復制ens33配置文件
[root@localhost network-scripts]# ls //查看
ifcfg-ens33 ifdown-ipv6 ifdown-tunnel ifup-isdn ifup-TeamPort
ifcfg-ens36 ifdown-isdn ifup ifup-plip ifup-tunnel
ifcfg-lo ifdown-post ifup-aliases ifup-plusb ifup-wireless
ifdown ifdown-ppp ifup-bnep ifup-post init.ipv6-global
ifdown-bnep ifdown-routes ifup-eth ifup-ppp network-functions
ifdown-eth ifdown-sit ifup-ib ifup-routes network-functions-ipv6
ifdown-ib ifdown-Team ifup-ippp ifup-sit
ifdown-ippp ifdown-TeamPort ifup-ipv6 ifup-Team
[root@localhost network-scripts]# vim ifcfg-ens36 //進入編輯ens36配置文件
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens36 //更改33為36
DEVICE=ens36 //更改33為36
ONBOOT=yes
IPADDR=192.168.10.10 //更改IP地址網段
NETMAS=255.255.255.0
GATEWAY=192.168.10.0 //更改網關地址
~
~ 注意,配置文件里面的UUID條目要刪掉,讓系統自動識別添加就可以了(UUID不可相同 )
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:wq
[root@localhost network-scripts]# service network restart //重新啟動網絡服務
Restarting network (via systemctl): [ 確定 ]
[root@localhost network-scripts]# ifconfig //查看網卡信息
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.10 netmask 255.255.255.0 broadcast 192.168.100.255
inet6 fe80::a85a:c203:e2e:3f3c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:a0 txqueuelen 1000 (Ethernet)
RX packets 3705 bytes 788818 (770.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1978 bytes 243934 (238.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens36: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 //成功獲取IP地址
inet 192.168.10.10 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::f6eb:23e3:3afb:fef4 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:5b:d3:aa txqueuelen 1000 (Ethernet)
RX packets 248 bytes 33751 (32.9 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 280 bytes 49781 (48.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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